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Vehicle, safety protection method and device after collision of vehicle and battery management system

A safety protection device and vehicle collision technology, which is applied to vehicle components, electrical devices, electric vehicles, etc., can solve problems such as short-circuit fire, failure to cut off the high-voltage circuit of vehicles in time, and electric shock to personnel, and achieve the effect of avoiding hazards.

Pending Publication Date: 2022-07-01
宝能汽车集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] After the vehicle collides, the battery pack is in a high-voltage power supply state. If the high-voltage circuit of the vehicle cannot be cut off in time after the collision, the consequences will be very serious
The collision power-off method in the related art cannot cut off the high-voltage circuit of the vehicle in time when an internal fault occurs in the vehicle, which may cause accidents such as electric shock or short-circuit fire

Method used

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  • Vehicle, safety protection method and device after collision of vehicle and battery management system
  • Vehicle, safety protection method and device after collision of vehicle and battery management system
  • Vehicle, safety protection method and device after collision of vehicle and battery management system

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Embodiment Construction

[0032] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

[0033] The following describes a safety protection method after a vehicle collision, a safety protection device after a vehicle collision, a battery management system, and a vehicle according to embodiments of the present invention with reference to the accompanying drawings.

[0034] It should be noted that, in this application, you can refer to figure 2 As shown, the vehicle includes a battery pack and a high-voltage circuit breaker connected to the positive output terminal or the negative ou...

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PUM

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Abstract

The invention discloses a vehicle, a safety protection method and device after collision of the vehicle and a battery management system. The safety protection method comprises the steps that a collision signal sent by an air bag restraint system controller is received; controlling a positive contactor and a negative contactor to be in a disconnected state based on the collision signal so as to carry out collision power-off protection on the vehicle, and judging whether the collision power-off protection fails or not; and if the collision power-off protection fails, controlling the high-voltage circuit breaker to be in a disconnected state. Therefore, after the vehicle is collided, the high-voltage circuit of the vehicle can be cut off in time through the high-voltage circuit breaker under the condition that the vehicle has a safety fault, and the electric shock risk and the harm generated by collision are prevented from being further expanded.

Description

technical field [0001] The invention relates to the technical field of vehicle safety, in particular to a safety protection method after vehicle collision, a safety protection device after vehicle collision, a battery management system and a vehicle. Background technique [0002] After the vehicle collides, the battery pack is in a high-voltage power supply state. If the high-voltage circuit of the vehicle cannot be cut off in time after the collision, the consequences will be very serious. The collision power-off method in the related art cannot cut off the high-voltage circuit of the vehicle in time when an internal fault occurs in the vehicle, which may cause electric shocks or short-circuit fire accidents. SUMMARY OF THE INVENTION [0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. Therefore, the first object of the present invention is to provide a safety protection method after a vehicle collisi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L3/04
CPCB60L3/04
Inventor 周侃金启前沈远亮
Owner 宝能汽车集团有限公司
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